Before you start
Gather the appropriate supplies and review the specific equipment manual.
- Chain length plan
- Marine-safe markers
- Anchor log
Step-by-step instructions
Measure the full chain
Confirm its length and how many sections are available before deciding on marks.
Choose an interval
Use marks that work with typical local depths and can be read from the windlass.
Use a distinct sequence
Pick colors or patterns that remain identifiable when wet or dirty and agree on their meaning.
Record the code
Place a small reference card near the windlass or in the anchoring checklist.
Inspect wear
Check marks after multiple deployments and replace missing ones before they become ambiguous.
Safety note
Keep hands clear of moving chain and gypsy. Do not attach items that can jam the windlass or damage its chain path.
Key takeaway
A shared marking code reduces guesswork between helm and foredeck.
Keep this job on your maintenance schedule
Save the topic as a maintenance task, choose a due date or engine-hour target, and record future service. Free and stored on your device.
Add to my maintenance plannerThis guide is for general education. Follow your equipment manufacturer’s instructions, current navigation guidance and applicable marine safety standards. When uncertain, use a qualified marine professional.